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Presented By: Department Colloquia

2021 Ta You Wu Lecture in Physics | A Nocturnal Discovery that Triggered a Revolution in International Metrology

Klaus von Klitzing, Nobel Laureate and Professor (Max Planck Institute for Solid State Research, Germany)

Klaus von Klitzing, Nobel Laureate in the cryostat lab Klaus von Klitzing, Nobel Laureate in the cryostat lab
Klaus von Klitzing, Nobel Laureate in the cryostat lab
The quantum Hall effect, an unexpected discovery at 2 a.m. on the 5th of February 1980 led to my Nobel Prize in 1985 and to a realization of a resistance standard based on fundamental constants. Since fundamental constants are the most stable quantities in our universe, a new international system of units based on constants of nature was introduced in 2019. The talk presents an overview of the quantum Hall effect and this importance for our new definition of the mass unit kilogram.

Doors to the fourth floor Rackham Amphitheatre will open at 3:00 pm for seating. Please come early! Per University policy, each guest will need to wear a face-covering and respond to the ResponsiBLUE COVID Screening Check via their smartphone: https://responsiblue.umich.edu/sign-in

This will be an in-person event and will also be live-streamed. Livestreamed on YouTube, https://myumi.ch/r8Dlz.

More information on the Ta-You Wu event webpage: https://myumi.ch/xmvm8
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